I think the thing in panel 4 is a called wooden fish. Should that be tagged?

Fish? I though it's a snake.

I thought it was one of those Buddhist drums, the one that Ichirin uses in one of her HM victory animations.

It is. Apparently, it's called a wooden fish. http://en.wikipedia.org/wiki/Wooden_fish

I just noticed danbooru even has a wiki page for it. Tags added.

Can someone interpret the story in here?I kinda catch no balls here...

Zhuo_Xing said:

Can someone interpret the story in here?I kinda catch no balls here...

Byakuren's heading out to buy something. Nazrin asks her if it's tea, but, embarrassed, she says she actually broke the wooden fish in two, handing her the pieces and shocking her.